The idea of American exceptionalism during the post-war period, as was a result of the idea of America as the first new nation with a different body of ideas.
American exceptionalism this simply the ideology that the state of America The USA(United States of America) is inherently different from other nations.
Hence, After the American Revolution aka the USA's War of Independence
The United stated felt a New rebirth and saw the self as unique and separate from other nations.
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